{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Treatment", "Treatment.Dosage", "Subject.Population", "Treatment.Time_elapsed", "Subject.Gender", "Combination.Drug", "Subject.Disorder", "Subject", "Treatment.Drug", "Subject.Race", "Treatment.Route", "Subject.Age", "Treatment.Freq", "Effect", "Treatment.Duration"]}], "input": "In this case report, we have described a patient with Crohn's disease who developed subfulminant hepatitis B after the fourth infusion of infliximab due to an unrecognized HBs-antigen carrier state."}
{"adverse event": [{"Treatment": "fourth infusion of infliximab", "Treatment.Dosage": "NAN", "Subject.Population": "NAN", "Treatment.Time_elapsed": "fourth", "Subject.Gender": "NAN", "Combination.Drug": "NAN", "Subject.Disorder": "NAN", "Subject": "a patient with Crohn's disease", "Treatment.Drug": "infliximab", "Subject.Race": "NAN", "Treatment.Route": "infusion", "Subject.Age": "NAN", "Treatment.Freq": "NAN", "Effect": "subfulminant hepatitis B", "Treatment.Duration": "NAN"}]}